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DSST Physical Sciences Principles

Subjects : dsst, science

Instructions:

Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. If the mass of a cart full of groceries decreases of half and its speed doubles - the momentum of the cart...
Remains unchanged
Newtons first principle of Universal Gravitation
Universal
Movement

2. When you add heat to a substance - its temperature...
Disorder
Heat of fusion
Near a maximum
Might stay the same

3. The ozone hole results from...
Universal
Movement
Halogen radicals interfering in ozone synthesis
Less on the moon

4. Increasing the frequency of light
Newtons first principle of Universal Gravitation
Increases the energy
263 degrees kelvin
Total internal energy of an object

5. A temperature of -10 degrees celsius is equivalent to...
Waste heat for secondary uses
Means less power is transmitted
263 degrees kelvin
Newtons first principle of Universal Gravitation

6. Circular motion requires centripetal force
Newtons second principle of Universal Gravitation
Mechanical - chemical - and radiant energy
First principle of Centripetal force
Second principle of Centripetal force

7. From the 50's and to the 70's - the pH of rain in the northeast had..
First principle of Centripetal force
Means less power is transmitted
Second principle of Centripetal force
Decreased

8. Electric power companies step up the voltage of generated power for transmission across the country because higher voltage...
Means less power is transmitted
Halogen radicals interfering in ozone synthesis
Increases the energy
Heat of fusion

9. The reason that a spear fisherman cannot see where the fish is actually located is...
Mechanical - chemical - and radiant energy
Halogen radicals interfering in ozone synthesis
Remains unchanged
Difference in the sped of light in water vs. air

10. A ship travels 3 miles in 15 minutes what is its speed in miles per hour...
Disorder
12 miles per hour
Increasing speed and constant acceleration
Waste heat for secondary uses

11. All objects with mass are attracted to another by the gravitational force
Newtons first principle of Universal Gravitation
Newtons third principle of Universal Gravitation
Halogen radicals interfering in ozone synthesis
First principle of Centripetal force

12. Raising an auto in a service station requires work. Raising it twice as high requires...
Twice the work
Total internal energy of an object
Decreased
Means less power is transmitted

13. Neglecting air resistance - a ball in free fall near the earth's surface will have...
Mechanical - chemical - and radiant energy
Increasing speed and constant acceleration
Decreased
Third principle of Centripetal force

14. The heat involved in the change of phase of phase from solid ice to liquid water is called...
Heat of fusion
Newtons third principle of Universal Gravitation
Increasing speed and constant acceleration
Near a maximum

15. If a charging elephant has kinetic energy - it must also have...
Increases the energy
Halogen radicals interfering in ozone synthesis
Momentum
Universal

16. The work that a heat engine is able to accomplish is ideally equivalent to the
Universal
Increases the energy
Near a maximum
Difference between the heat supplied and the heat exhausted

17. The gravitational force between two masses is inversely proportional to the square of the distance between those two objects.
Waves and particles
Difference in the sped of light in water vs. air
Decreased
Newtons third principle of Universal Gravitation

18. The weight of one kilogram of iron on earth is...
263 degrees kelvin
Difference between the heat supplied and the heat exhausted
Less on the moon
Mechanical - chemical - and radiant energy

19. Which is not one of the fundamental forces of nature...
Third principle of Centripetal force
Universal
Twice the work
Momentum

20. Electrical energy can be converted to...
Newtons first principle of Universal Gravitation
Mechanical - chemical - and radiant energy
Waste heat for secondary uses
Movement

21. At a given speed - the centripetal force - the smaller the circle.
Third principle of Centripetal force
Increases the energy
Remains unchanged
Might stay the same

22. In burning coal - what contaminant is of major concern as a pollutant...
Newtons first principle of Universal Gravitation
Sulfur
Second principle of Centripetal force
Waste heat for secondary uses

23. Electromagnetic radiation can be viewed as...
Movement
Heat of fusion
Waves and particles
Near a maximum

24. The larger the centripetal force - the faster an object travels in a circle of a given size
Total internal energy of an object
Second principle of Centripetal force
Third principle of Centripetal force
Newtons second principle of Universal Gravitation

25. The gravitational force - two masses are directly proportional to the mass of each object
12 miles per hour
Remains unchanged
Newtons second principle of Universal Gravitation
Difference between the heat supplied and the heat exhausted

26. A 5 kg fish that is swimming toward it at a velocity that brings both fish to a halt. What is the speed of the smaller fish?
Near a maximum
5 m/s
Mechanical - chemical - and radiant energy
Disorder

27. cogeneration uses...
Waste heat for secondary uses
Newtons first principle of Universal Gravitation
12 miles per hour
Second principle of Centripetal force

28. In a generator - the flow of electrons (current) is created by...
Movement
Universal
Twice the work
Sulfur

29. Entropy refers to...
Remains unchanged
263 degrees kelvin
Disorder
Sulfur

30. Heat is the...
Twice the work
Total internal energy of an object
Less on the moon
Might stay the same

31. The theoretical production curve of oil indicates oil production is...
12 miles per hour
Total internal energy of an object
Near a maximum
Universal